Stabilizing-wheel for motor-cycles.



L. G. TOLLSTAM. STABILIZING WHEEL FOR MOTOR CYCLES.

APPLICATION FILED APR. 7. 1915.

Patented Mar. 28, 1916.

2 SHEETSSHEET 1.

nil COLUMBIA PLANoaRAPn cu.. WASHINGTON, D. c.

L. a. TOLLST AM. STABILIZING WHEEL FOR MOTOR CYCLES.

' APPLICATION FILED APR. 7, 1915.

Patented Mar. 28, 1916.

2 SHEETS-SHEET2.

ffllle messes THE. COLUMBIA PLANOGRAPH c0., WASHINGTON, n. c.

LoUIs G. TOLLSTAM, or Los ANGELES, CALIFORNIA.

STABILIZING-WHEEL FOR MOTOR-CYCLES.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed April 7, 1915. Serial 170. 19,807.

i. To'all whom it may concern:

Be it known that I, LOUIS G. TOLLSTAM, a citizen of theUnited States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a .new anduseful Improvement in Stabilizing- -Wheels for Motor-Cycles, of which the followingIis a specification.

My lnventicn relates to .m torcycles.

As ordinarily constructed mrtor cycles consist of two wheels in series, the rear wheel being driven by an internal combusticn engine. \Vhen in motion, a motor cycle tends to balance itself, but when moving very slowly, or when at rest, it tends to topple over, it being necessary at such times for the rider to place his'foot on the ground for the purpose of steadying the machine. This is not a serious objection in operating on country roads, butthe operation of motor.

cycles on city streetsin dense traffic is a ditiicult and tiresome matter, as it is necessary for the operator to frequently'stop and start, and consequently necessary for-him to support the machine a portion ofthe time by resting one foot on the ground. V This difliculty has become more pronounced as the weight of motor cycles has been increased of late years. and some of the larger machines are very diflicult to manipulate on crowded. streets.

The principal object of my invention is to providean attachment for a motor cycle which will hold it upright when the motor cycle is at rest, or moving slowly, so that "the operator can devotehis entire attention to the .machine without the necessity for placing his foot on the ground for balancing purposes.

A further object of the invention is to provide an attachment which the operator can fold no out of the way when it is not in use.

Further objects and advantages will be made evident hereinafter. I I

Referring to the drawings. which are'for illustrativepurposes only: Figure 1 is a side elevation showing a portion of a motor cycle with the invention applied thereto, and the balancing wheels in the raised position.

Fig. 2 isa plan view of the apparatus shown in Fig. 1. Fig. 3 is a section'on the plane ..w -aa of Fig. 2, looking in thedirection of the arrows, butwith the balancing wheels in thtill'lOWGIflCl positlon. Fig. 4 is a section -on the plane m w.Fig. 2, looking in the direction of the arrows. Fig. 5 is an elevat1on of the forward portion of the apparatus shown in Fig. 1 with the pedal in the position it assumes when the wheels are lowered.

* F ig. 6 is a section" on the line 00 03 of Fig. 5. In .the drawings, a front wheel 11 is pivotally mounted in the frame of the mrtorz' cycle. and a rear. wheel 12 is rigidly. jour 'naled in said frame. The frame is provided with side plates 13 to which the bearings for the rear wheel are secured, and sidebars 14' extend between the wheels 11 and 12 forming the lower portion of the frame and also forming a support for the fort boards not shown, the above parts being common to several types of motor cycles and forming no part of the present invention. The inv'ention consists broadly of balancing wheels 21 and 22 which are preferably provided with rubber tires, these wheels being raised and lowered through a series of rods from a pedal 23, this pedal being'pro-' vicled with a latching mechanism so that the wheels may be locked in their lowered position as shown in Fig. 3, these wheels being provided with spring means for normally holding them in their raisedposition as shown in Figs. 1 and 2.

The wheels 21 and .22 are mounted on axles carried by forks 24, these forks being pivoted on a wrist pin 25 carried on pivot links 26 which turn freely on pivot pins27' on the pivot cast-ing 28.. A compression spring 37 is placed aboutone of two set screws 39 between a projection 40 on the pivot casting 28 and the bracket 30. this compression spring tending to force the project on 40 away from the base of the bracket 30. The set screws 39 are for limiting the move- :ment of the projection 40 with relation to the bracket 30. On either side of the machine rear rods 41 are placed, theserods hav- 7 ing ole-Vises 12 pivoted on pins 43, these pins being carried on pivoted members4t ...which are secured in holes in the links 26, the rear rods 41 extending forward and being provided with clevises 46 which arepivoted on pins 47 carried on a cross head 48. g

The cross head l8 is provided with a pull back tension spring 19 secured to the frame of the motor cycle in such a manner as to tend to draw the cross head 48 ina rearwardly direction. Surrounding the pivot ,pins 27 are torsion springs 50 so arranged that, they tend to move the wheels 21 and 22 into the raised position as shown in Fig. 1

andFig. 2. The cross head 48 is secured by means of bolts 51 to a slide 52, this slide 1 moving freely in a guide casting 53 'and being secured by means of a cap 54 and bolts 55 to oneofthe side bars 14. The guide casting 53 hasfaslot 56 f0rmed therein in which'the slide 52 is free to move, the slide being held this. groove by means of plates {57 and screws 58. Secured to the forward end of the slide 52 by means of a bolt 60 isa clevis 61 which is secured to a front rod 62. The rjod 62 extends forwardly, sliding freely in 7 an opening 64 in the end of a clevis 63-. A compression spring 65 surrounds the rod 62,

the rod 62 having a head 66 formed thereon, the spring 65 forming a resilient connection between the rod 62 and the clevis 63. The

clevis 63 is pivoted on a pin 67 carried on a lever 68 of a -hook member 69., The hook member 69 is pivoted ona pin. 70 carried by a casting 71. which is secured by means of I bolts 71' to the frame of the motor cycle.

The hook i member 69 is provided with a hook; 72. Carried on a pin 73 in the casting 7,1 is the pedal 23. the pedal having an end 'r'tadapted to engage the lever 68 and the hook 72. Pivoted on a pin-..75 carried in the .casting 71;is a latch lever/76, A fiat spring l77 tends to hold the lever in the position {shown in Fig.6, this lever having a projection 78 carrying a pin 79 wh ch is in turn securedin a catch 80. this catch having rollers 81 and 82 pivoted thereon and. so located G that they roll freely on the s de of the pedal 23 to prevent binding thereof. The catch slides in an opening 83 in the casting 71 and isis o located that it is forced over the top of the pedal by the spring 77, to its extreme lower position. 7 i V The method of operation of the invention isfasfollows: The parts be ng in the position shown n Fig. 1. the wheels 21 and 22 be ng held, in their raised positionjbv the springs and the spring 49, the machine is ready f or operation and may be operated like an ordinary motor cycle. Y "When it is necessary to slow down orstop, as for example when the rid pp a s a r si g in a cro e thoroughfare, the rider iizresses c lownwardly o Her d I. '235 t urpi t ns .fl jatl r sl i v helev r 68.a ic engaging theihook 2, pulling the'front rod '62 wheels 21 and 22ca'n be folded r tar an s assisted 4 ;,1f and exerting a tension on the rear rods 41.

This pulls the wheels 21 and 22 forward. The location of the projection 36 is suchthat;

as the wheels 21 and 22 move forward, the

pivot link 26 turning freely on the pivot pin 27, the forks 2& also turn around the. wrist pin 25, the wheels being dropped into aposition approximately vertical to the surface. of the street. When the pedal 28 is pushed,

to its extreme lower positionQthe catch 803s forced inwardly by thespring 77, securely locking the pedal 23 in its depressed positicn. The pedal 23 remains inthis position:

and. the wheels 21%and 22 are locked in their? lower" position as shown in Fig. 8, until the with his foot, moving the lever inthe direc-: tion of the arrow shown in Fig. 6, thereby throwing the .catch. 80 out of engage ment withthe pedal 23'and allowing the springs 19and 50 to throw the wheels .21 and 22inctlo theirv raised position as shown in Figs.) 1 an :2. i

The provision of the wheels 21land 22 on either side of the rear wheel 12 changesthe motor cycle to.v a stable vehicle, so that it is possibl for the rider to move through crowded traffic-without the necessity for frequent balancingg At the same time the up out of the way;when not in use. V

I'claim as my invention y I QL A stabilizing wheel and'support for a motorcycle comprising'awheel, an axle for said wheel, a fork in which said axle is .-secured, a pivot link, a wrist pin for securing, said fork to one end of said pivot link, means fortpivotally securingthe other end ofsaid pivotj link to the motorcycleframe, and means for swinging said pivotlink with relatien to the frame and simultaneously sw ng ng said fork. with relation to the -:pivot linln 2. .A' stabilizing wheel and support for .amotorcycle. comprising a wheel'...anyaxle for said .wheel,'a fork, in which said eaxle is secured. a pivotlink, awrist 1pm for. securmg said fork to one end of said pivot link,

a pivot pin for-securing the other end of the pivot linkto-the frame, means for swinging said pivot link'backwardand inward toward the frame about said pivot pin, and means for simultaneously swinging said wheel upward about said .wrist pin.

3. A stabilizingwheel andsupport fora motorcycle comprising a Wheel, an axle for said wheel, a fork in which said axle is secured. a p1votfl1nk,a wrlst pin for securing sald fork to, one endof said pivot link, a

pivot pin for securing the other end ofthe means'for'fso "actuating" said re'ar roda's To 7 .foperatorjstrikesonthe sideof the lever 76 swing said pivot link backward and inward about said pivot pin, and means for simultaneously swinging said wheel and fork upward about said wrist pin.

4. A stabilizing wheel and support for a motorcycle comprising a wheel, an axle for said wheel, a fork in which said axle is secured, a pivot link, a wrist pin for securing said fork to one end of said pivot link, a pivot pin for securing the other end of the pivot link to the frame, a rear rod connected to a point on said pivot link intermediate of said pivot pin and said wrist pin, means for so actuating said rear rod as to swing said pivot link backward and inward about said pivot pin, and a thrust rod so secured to said fork and to the frame of the motorcycle that said wheel and fork swing upward about said wrist pin as said pivot link swings backward and inward.

5. An operating mechanism for motorcycle stabilizing wheels comprising a support, a pedal pivoted on said support, an

end extension formed on said pedal, a hook member so placed as to be engaged by said end extension on said pedal, and means for Copies of this patent may be obtained for five cents each, by addressing the port, a pedal pivoted on said support, an

end extension formed on said pedal, a hook member so placed as to be engaged by said end extension on said pedal, means for locking said pedal in one extreme position, and

means for connecting said hook member with the stabilizing wheels.

7. An operating mechanism for motorcycle stabilizing wheels comprising a support, a pedal pivoted on said support, an end extension formed on said pedal, a hook member'so placed as to be engaged by said end extension on said pedal, a latch lever pivoted in said support, a catch actuated by said latch lever and so placed that it looks said pedal in one extreme position, and means for connecting said hook member with the stabilizing wheels.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 1st day of April, 1915.

LOUIS G. TOLLSTAM.

"Commissioner of Patents,

Washington, D. 0. 

